Stencil-sheet.



PATENTBDJUNB 30, 1903. A. D. KLABER. STBNGIL SHEET. PPLIoATIoN FILED APB. so, 1902.

N0 IODBL.

THE Npmus frans au, Punto-uma.. wAsHmGmn, rr No. 732,564. PATENTED JUNE 30, 1903.

A. D. KLABER.

STENCIL SHEET.

' APPLICATION MLPD APR, 3o, 1902. No MODEL,

4 SHEETS-SHEET 2`.

No. '732,564 l PATENTBD JUNE 30, 1903.

` A. D. KLABER.

'STENGIL SHEET. APPLICATION FILED APR. 30, 1902.

NO MODEL. Ai,SHItftYIS-SHEET 3.

A PQ i *s E E m a i 'nq l 1 r wi i A i 1 m s i i "QQ I l l l lq }/:,h 1 /)|r T/1 PATBNTED JUNE 30, 1903.

` A. D. KLABER.

STENUM. SHEET. A PPLIUATION FILED APB. 30, 1902.

X0 MODEL. 4 SHEETS-SHEET 4.

,3 on 508W UNITED STATES,

Patented {'une 30, 1903.

PATENT OEEICE.

AUGUSTUS DAVID 4KLABER, OF LONDON, ENGLAND, ASSIGNOR To A. e. DICK COMPANY, OE CHICAGO', ILLINOIS, A CORPORATION on ILLINOIS.

STENClL-SHEET.

SPECIFICATION forming part of Letters Patent No. 732,564, dated June 30, 1903.

Application filed April 30, 1902.

To all whom t may concern:

Be it known that I, AUGUSTUS DAVID KLA- BER, a subject of the King of Great'Britain, residing at London, England, have invented 5 certain new and useful Improvements in Stencil-Sheets, of which the following is a specification.

This invention relates to stencil-sheets and the method of attachingthem to duplicating! 1o machines, and has for its object to simplify the arrangement of the stencil-sheet and the backing and protecting sheets necessary for use when producing the stencil.

Further, the intention of the invention is to insure the accurate placing of the stencilsheet upon the duplicating-machine and the protection of this sheet from undue wear when in position. p

A stencil-sheet intended to be used for rezo producing type-written matter has commonly to-be disposed between a protective sheet of thin paper, which prevents the wax ofthe stencil-sheet adhering to the typesof a typewriting machine, and a backing of some suitz 5 able paper or material adapted to receive the portions of wax struck out of the stencilsheet when the latter is typed upon. According to this invention this backing-sheet or the covering-sheet or the stencil-sheet 3o itself is formed of paper or other materialof such a length as to leave a portion which will overlap the upper end of the stencil-sheet and may have another portion which Will overlap the lower end of the stencil-sheet. The latter, togetherwith the covering-sheet, is inserted in this backing, the upper ends of both stencil and covering sheets being preferably fastened together and to the upper portion of the backing by some suitable ad- 4o hesive substance, or if the stencil-sheet is to be prepared by hand the backing and covering sheets are not requiredwhen the sheet is being prepared and may be dispensed with, the 'attaching-flap being attached to or forming part of the stencil-sheet.

The improved arrangement is particularly adapted for stencil -sheets intended to be used with rotary or similar duplicating-machines where the stencil is mounted in such 5o a way as to be brought in .contact at a given point with the paper to be printed upon. At

Serial No. 105,329. (No model.)

the point where the paper is picked up it is row of perforations or similar provision isl made in the backing or covering sheet on a line which will lie just beyond the point of pick-up when the stencil-sheet is in the machine, so as to cover up and protect the stencil-sheet at the point where the Wear takes place, or if the Hap is on the stencilsheet the latter may be protected as hereinafter described. ofthe usual clamp for holding the end ofthe stencil-sheet is provided with a bar in which is a slot. That portion of one of the sheets which normally overlaps the top ofthe prepared stencil-sheet is intended to be passed through the slot in thisbar on the machine and when so passed through is drawn upon The machine itself in'place until the stencil-sheet lies in the proper place,

as determined by registering lines or other marks or by a limiting projection on the stencil-sheet or backing, which prevents the flap being drawn too far. back on top of the backing and is stuck down, thelatter or the edge of the iiap being providedwith the necessary adhesive to effect this. An indicating central line Orv equivalent i's provided to show Where the gummed edge of the flap is to be fastened down and when placed in the vreproducing-maehine coincides with a line or mark `on the bar. In some cases it is desirable to place a thin sheet of tissue-paper underthe central sheet in addition to that which lies over it and between the stencil-sheet and the backing.

Referring to the drawings, in which I have shown a convenient form of my invention applied to av stencil-sheet intended to be prepared in a type-writing machine, Figure l is a perspective view of a stencil-sheet provided with backing and covering sheets in accordance with this invention. Fig.'2 is a 7s This flap is now folded i perspective view, to an enlarged scale, show- Fig. Llisa* IOO perspective view of part of the cylinder of the duplicating-machine, showing the fixing-bar attached thereto.

A is the stencil-sheet, B the backing-sheet, and C the covering or front protecting sheet. The covering-sheet C is provided at the upper edge of its' under surface with adhesive substance, by which it is connected to the stencil-sheet A, and the stencil-sheet is provided with a similar portion coated with the adhesive substance, by which it is connected to the backing-sheet B, or the adhesive substance may be placed upon the backing-sheet. Instead ot' being attached to each other by adhesive substance the sheets may be otherwise joined, or they may be simply superposed wit-hout being attached.

The sheets A, B, and C can be handled and readily inserted into a type-writing machine without being liable to become detached or displaced.

The leading portion B' of the backing-sheet is provided with a triangular part or flap B2, as shown, which is folded over in front of the covering-sheet C, and after the stencil-sheet has been Written upon or otherwise impressed and is to be inserted in the duplicating-machine this flap is passed through a slot D in a bar D, (see Fig. 2,) which takes the place of the ordinary clamping device in the reproducing-machine, and is guided to a central position by means of a line B3 on the iiap which coincides with the line or mark D2 on the bar. The flap is pulled upon until the sheet is in proper position, and it is then folded around the bar D and fastened down onto the sheet by means of adhesive substance B10, placed along its edges or otherwise. To prevent the liap being drawn too far through the slot and to determine the exact place where the edge of the liap is to be fastened down, the slot is made of such a width that it only permits one thickness of the paper to pass freely through it, so that the top of the stencil-sheet forms a limitingstop, or some other device, such as a line or other indicating-mark, may be applied to the backing or stencil sheet for this purpose.

Before the stencil is placed on the machine and afterit has been prepared by typing upon it the backing is torn across at the abovementioned row of perforations near the upper end of the hacking, this procedure leaving a portion which overlaps the stencil-sheet for a distance beyond that at which occurs the pick-np of the paper upon which the impression is made. This remaining portion of the backing is that to which the attachingiap is fastened down when it has been passed through the slot in the attaching-bar on the machine and turned back.

The body or middle part B ofthe backingsheet is preferably formed slightly wider than the stencil-sheet and is provided on one or both edges with indicating-scales 3 or other marks, by means of which the position of the` matter to he inscribed on the stencil may be regulated.

In order to insure positioning the matter to be typed upon the stencil-sheet, either the stencil-sheet or the covering-sheet or the backing may carry along one or both edges a scale or a series of numbered or lettered marks or merely a row ot` numbers, letters, or other indications, which will enable any particular point on the stencil-sheet to be at once identified with a corresponding point on another sheet of papersay a sheet of note-paper--when the latter is placed opposite the scale or indicating marks. A convenient arrangement for these indicating-marks is to form the backing for the stencil-sheet slightly wider than the stencil-sheet itself, the indicating marks being located upon each projecting edge of the backing-sheet, so that they can be seen beyond the edge of the stencil-sheet. Indicating-scales may also be provided across the body of the backing-sheet. cumscribing or confining lines B5 or other marks or indicators are placed upon the backing-sheet to indicate the space within which the matter to be inscribed upon the stencilsheet must be confined. Scales BJ or other indicating-marks are preferably placed on the backing-sheet as a further guide for the matter to be inserted, or these lines and scales may be placed upon the stencil-sheet or on the covering-sheet. A line Bl1 or other mark is placed at or near the top and ,edge of the sheet to denote the position in the machine of the upper edge of the sheet or paper to be printed upon, and a short distance below this line is a row of perforations B, along which the backing-sheet is torn in order to be detached when the stencil-sheet is to be inserted in the duplicating-machine. The remaining part of the backing-sheet-,to which the stencilsheet is permanently attached, thus projects between the stencil-sheet and the sheet to be printed upon when the latter is picked up by the machine by the distance between the row of perforations BG and the line B11 at the top part of the backing-sheet, and by this means premature wear or damage to the stencil-sheet along the line where the picking up of the sheet to be impressed takes place is avoided and the ink is prevented from passing through the stencil-sheet at this part.

It is found in duplicating-machines of the kind above referred to that the portion of the inked surface which lies near the lower end of the stencil-sheet requires to be covered over in some way in order to prevent the ink from working around the end of the stencil-sheet and marking the paper printed upon or otherwise causing inconvenience. The previouslymentioned portion 'of the lower end of one of the sheets serves as an ink-protector, and the backing is perforated at a suitable point to enable this protectingpiece to be torn off. This ink-protector can then be placed in position and secured on the duplicating-machine after the stencil has been fixed. This flap B7 is shown attached In the form illustrated the cir-` IOO IlO

to the lower part of thesheet and is folded in front of the covering-sheet, and a row of perforations B8' divides this portion from the body part` B of the backing-sheet, or this llap may be dipensed with. After the main portionof the backing-sheethas been detached from the stencil-sheet along the row of perforations B6 the iiap part B7 is disconnected from the backing-sheet along the line B8 and is then fastened in the reproducing-machine so' as to overlap the lower edge of the stencilsheet, and thereby form anink-protector to prevent the ink from the ink-pad from working around the end of the stencil-sheet and.`

damaging or marking the paper being printed upon. The bar D may be formed with a second longitudinal slot, through'which the end of the ink-pad may be passed to secure' able ink-,pad E.

it in proper position in the machine. Said machine may also be provided with a detach- Instead of being attached to or forming part of the backing-sheet the part by which the stencil-sheet is connected to the bar in the duplicating-machine and that which protects the stencil along the pick -upline Vmay be' formed as part of the covering-sheet or may be connected thereto, the three sheets being counected together, preferably as lalready described, or the stencil-sheet itself maybe provided at one of its ends with an overlapping part or flap which can be passed through the slot in the bar to connect the stencil to the machine, this iiap having connected to it preferably a part'which protect-s the stencil along the pick-up line.

Instead of beingformed separately from the stencil-sheet and connected thereto as above described the flap by which the stencil is connected to the duplicating-machine may be formed as an extension of one end of the stencil-sheet itself. When the tiap forms part of the stencil-sheet, an additional piece of paper or other suitable material may be permanently attached to the stencil-sheet to protect it on the pick-up line in the duplicating-machine, or part of the stencil-sheet may be coated with some protective substance or composition. The flap at the lower end of the stencil-sheet, which serves as an-inkpro tector in a duplicating-machine, instead of forming part of the backing-sheet may be connected to or form part of the coveringsheet or of the stencil-sheet itself.

The arrangement of the stencil-sheet with its backing and covering sheets as above described is more particularly adapted for use when the stencil is'to be-prepared in a type-` writing machine; but in some cases-such, for example, when the stencil-sheet is to be prepared or written upon by hand-that is to say, by employing a stylus or other similar instrument-the covering-sheet need not be employed, and the backing-sheet may also be dispensedwith ,the llap by which thestencil-sheet can be fixed to the machine being formed integral with the stencil-sheet itself or has a separate piece connected thereto, as above` l. The combination with a stencil-sheet for y duplicating purposes, of a iiap by which the stencil-sheet is connected to a bar in aduplicating-machine and means for protecting the stencil on the pick-up line substantially as described.

2. The combination with a stencil-sheet for duplicating purposes, of a backing-sheet temporarily secured thereto, and an extensionflap for attachment to a duplicating-machine, substantially as described.

3. The combination with a stencil-sheet for duplicating purposes, ot' a backing-sheet temporarily secured thereto, a covering-sheen,-

and an extension-Hap for attachment to a duplicating-machine, substantially as described.

edge for attaching said sheet to a duplicat' ing-machine, substantially as described.

5. The combination with a stencil-sheet for t duplicating purposes, of an extension perma- -nently vsecured thereto, substantially as de,

scribed. v v

6. The combination with a stencil-sheet for duplicating purposes,of an extension securedl IOO duplicating-machine', substantially as described. y

7. The combination with a stencil-sheet for duplicating purposes, of backing and covering sheets temporarily secured thereto, an extension-Hap on one of the sheets for the pur- IIC pose set forth, and a protecting-flap overlap'- backing-sheet, and front covering-sheet, of a connecting-Hap at one end of one of the sheets, an ink-protecting flap carried at the other end of one of the sheets and means for protecting the stencil-sheet on the line of pick-up -in the duplicating-machine,- substantially as described.

l0. The combination with a stencil-sheet, a backing-sheet and a front covering-sheet, of a connecting-flap at one end of one of the sheets, an ink-protectin g apat the other end of one of the sheets and a portion attached tothe connecting Iiap for protecting the stencilsheet on the pick-'upline in the duplicatingmachine, substantially as described.

11. The combination with astencil-sheet, of a front covering-sheet, a backing-sheet, a portion of the backing-sheet permanently connected to the stencil-sheet to protect it on the pick-up line in the duplicatingmachine and a connecting-flap attached to this portion, as and for the purpose described.

l2. The combination with astencil-sheet, a front covering-sheet, a backing-sheet, a portion of the backing-sheet permanently connected to the stencil-sheet to protect it on the pick-up line in the duplicating-machine, a flap connected to this portion for attaching the stencil-sheet to a bar in the duplicatingmachine, and an ink-protecting flap connected to the backing-sheet at its other end, substantially as described.

13. The combination with a stencil-sheet, a front covering-sheet, a backing-sheet, a portion of the backing-sheet permanently connected to the stencil-sheet to protect it on the pick-up line in the duplicating-machine, a iap connected to this portion for attaching the stencil-sheet to a bar in the duplicatingmachine, a line B3 on the Hap, and an inkprotecting flap connected to the backingsheet at its other end, substantially as described.

14. The combination with a stencil-sheet, a front covering-sheet, a backing-sheet, circumscribing-lines on the backing-sheet, a portion of the backing-sheet permanently connected to the stencil-sheet to protect it on the pick-up line in the duplicating-machine, a flap connected to this portion for attaching the stencil-sheet to a bar in the duplicatingmachine, a line B3 on the ap and an init-Y protecting Hap connected to the backingsheet at its other end, substantially as described.

15. The combination with a stencil-sheet, a front covering-sheet, a backing-sheet,circum scribing-lines on the backing-sheet, scales on the backing-sheet, a portion of the backingsheet permanently connected to the stencilsheet to protect it on the pick-up line in the duplicating-machine, a ap connected to this portion for attaching the stencil-sheet to a bar in the duplicating-machine, a line B3 on the iiap and an ink-protecting flap connected to the backing-sheet at its other end, substantiall y as described.

16. The combination With a stenci1sheet,a front covering-sheet, a backingsheet,circum scribing-lines on the backing-sheet, scales on the backing-sheet, lines B11 on the backingsheet, a portion of the backing-sheet permanently connected to the stencil-sheet to protect it on the pick-up line in the duplicatingmachine, a Hap connected to this portion for attaching the stencil-sheet to a bar in the duplicating-machine, a line B3 on the flap, and an ink-protecting Hap connected to the backing-sheet at its other end, substantially as described. f

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AUGUSTUS DAVID KLABER.

Witnesses:

WM. J. Dow, ERNEST F. FOTHERGILL. 

